Terminal Device and Communication Method

3. The terminal device according to claim 1, wherein upon the first connection and the second connection being successfully established, the controller proceeds with communication with the communication destination using the HTTP/2 if the second connection is established earlier than the first connection and the communicator is to perform communication over a wired connection, and otherwise proceeds with communication with the communication destination using the HTTP/3.

4. The terminal device according to claim 1, wherein when public-key cryptography is used in the first connection and the second connection and if the controller has acquired key information from the communication destination through one of the first connection and the second connection, the controller uses the key information when establishing the other of the first connection and the second connection with the communication destination.

6. The communication method according to claim 5, wherein upon the first connection and the second connection being successfully established, the controller proceeds with communication with the communication destination using the HTTP/2 if the second connection is established earlier than the first connection and the communicator is to perform communication over a wired connection, and otherwise proceeds with communication with the communication destination using the HTTP/3.

8. The terminal device according to claim 7, wherein upon the first connection and the second connection being successfully established, the controller proceeds with communication with the communication destination using the second communication protocol if the second connection is established earlier than the first connection and the communicator is to perform communication over a wired connection, and otherwise proceeds with communication with the communication destination using the first communication protocol.